NEW YORK, Oct 29 (Reuters) - Brent oil futures fell on
Tuesday, giving back some of the previous session's sharp gains,
on expectations that fresh disruptions over the weekend in
exports from OPEC member Libya could be short-lived.

Brent rose 2.5 percent on Monday as reports of Libya's worst
civil unrest since the civil war in 2011 fueled concerns over
global oil supplies.

The oil market seesawed on varying reports out of Libya.

"The Libyan deal is highly fluid," said Jim Ritterbusch,
president of Ritterbusch & Associates in Galena, Illinois.
"Yesterday we were looking at production outages, today there's
a renewed upswing in output. It just adds to the volatility."

Libya's crude oil exports have slumped to around 90,000
barrels per day (bpd), less than 10 percent of capacity, after
new shutdowns that began over the weekend.

Libya's prime minister said exports from the eastern port of
Hariga with a capacity of 110,000 bpd would resume after one
week. The OPEC member had brought exports back to around 450,000
bpd over the last month before this latest bout of unrest.

Brent futures for December ended the day 60 cents
lower at $109.01 a barrel, after trading as low as $108.45 and
gaining $2.68 per barrel on Monday.

U.S. light, sweet crude for December fell 48 cents to
settle at $98.20 a barrel.

European benchmark Brent's premium over U.S. benchmark West
Texas Intermediate (WTI) CL-LCO1=R narrowed by around 40
cents, after widening by nearly $2 on Monday, as fears over
Libyan supplies eased. It settled at $10.81.

"I think that spread is moving out again if that goes on for
awhile," said Gene McGillian, an analyst with Tradition Energy
in Stamford, Connecticut. "Brent will catch more of a bid and
WTI will be held back by the really strong production levels we
see in North America."

A joint statement by the U.N. nuclear agency and Iran after
talks on the Islamic state's nuclear program also helped limit
gains in oil prices.

U.S. INVENTORIES

Oil markets have been balancing supply risks against rising
inventories in the United States due to seasonal refining
maintenance which has cut crude demand.

Refiners in the Gulf Coast refining hub were expected to
return from autumn work by mid-November.

Stockpiles at the Cushing, Oklahoma, delivery point for the
U.S. oil futures contract, have built over the last two weeks
but are expected to decline as refiners come out of maintenance
and draw on crude supplies. Declining Cushing supplies had
helped support U.S. oil futures and tighten the discount to
Brent crude as infrastructure has come online to deliver oil to
key refining hubs.

News that BP's 405,000 bpd Whiting refinery in Indiana will
not reach full production until the first quarter of 2014 may
help support Brent's premium over U.S. crude in the near-term.
The BP1 pipeline, that runs from the refinery to
Cushing, is expected draw heavy Canadian crude away from the
refinery.

Total U.S. crude oil stockpiles have risen 24 million
barrels since mid-September, according to government data. U.S.
oil stocks probably rose an additional 2.2 million barrels last
week, while distillates and gasoline fell, a Reuters poll showed
ahead of weekly data.

U.S. crude oil stocks rose by 5.9 million barrels last week
while stockpiles at Cushing increased by 2.2 million barrels,
data from industry group American Petroleum Institute showed on
Tuesday.

The market also awaited comment from the U.S. Federal
Reserve's two-day policy-making meeting, expected at 2 p.m.
(1800 GMT) on Wednesday. The Fed is widely expected to maintain
its economic stimulus as it waits to see more evidence of how
Washington's recent budget battle hurt the U.S. economy.
(Additional reporting by Christopher Johnson in London and
Osamu Tsukimori in Tokyo; Editing by Jim Marshall, Marguerita
Choy, Chris Reese and Bob Burgdorfer)